Each of three identical 15.0-L gas cylinders contains 7.50 mol of gas at 295 K.Cylinder A contains Ar,cylinder B contains Cl2,and cylinder C contains N2.According to the kinetic molecular theory,which gas has the highest collision frequency?

A) Ar B) Cl2 C) N2 D) All have identical collision frequencies A) Ar B) Cl2 C) N2 D) All have identical collision frequencies

What is the total pressure in a 10.0 L flask which contains 0.127 mol of H2(g)and 0.288 mol of N2(g)at 20.0°C?

A) 0)306 atm B) 0)681 atm C) 0)693 atm D) 0)998 atm A) 0)306 atm B) 0)681 atm C) 0)693 atm D) 0)998 atm

A 0.600 g sample containing Ag2O and inert material is heated,causing the silver oxide to decompose according to the following equation: 2 Ag2O(s)→ 4 Ag(s)+ O2(g) If 13.8 mL of gas are collected over water at 27°C and 1.00 atm external pressure,what is the percentage of silver oxide in the sample? The partial pressure of water is 26.7 mm Hg at 27°C.

A) 10.4% B) 20.9% C) 41.8% D) 44.8% A) 10.4% B) 20.9% C) 41.8% D) 44.8%

Exam 9: Gases: Their Properties and Behavior

Each of three identical 15.0-L gas cylinders contains 7.50 mol of gas at 295 K.Cylinder A contains Ar,cylinder B contains Cl₂,and cylinder C contains N₂.According to the kinetic molecular theory,which gas has the highest collision frequency?

(Multiple Choice)

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Question 161

In the diagram below,nitrogen molecules are represented by unshaded spheres,oxygen molecules by gray spheres,and chlorine molecules by black spheres. -If the total pressure in the container is 900 mm Hg,what is the partial pressure of nitrogen?

(Multiple Choice)

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Question 162

How many liters of SO₃(g)are produced at 25°C and 1.00 atm from the combustion of 1.00 kg of coal which is 1.00% S by weight? Assume all the sulfur in the coal ends up as SO₃.

(Multiple Choice)

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Question 163

The burning of sulfur-containing coal can lead to acid rain due to the formation of ________ acid.

(Short Answer)

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Question 164

What is the Celsius temperature of 100.0 g of chlorine gas in a 55.0-L container at 800 mm Hg?

(Multiple Choice)

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Question 165

A balloon filled with helium gas at 20°C occupies 2.91 L at 1.00 atm.The balloon is immersed in liquid nitrogen at -196°C,raising the pressure to 5.20 atm.What is the volume of the balloon in the liquid nitrogen?

(Multiple Choice)

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Question 166

What is the total pressure in a 10.0 L flask which contains 0.127 mol of H₂(g)and 0.288 mol of N₂(g)at 20.0°C?

(Multiple Choice)

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Question 167

How many liters of oxygen are needed to exactly react with 19.8 g of methane at STP? CH₄(g)+ 2 O₂(g)→ CO₂(g)+ 2 H₂O(l)

(Multiple Choice)

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Question 168

How many liters of oxygen are needed to exactly react with 27.8 g of methane at STP? CH₄(g)+ 2 O₂(g)→ CO₂(g)+ 2 H₂O(l)

(Multiple Choice)

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Question 169

How many grams of XeF₆ are required to react with 0.579 L of hydrogen gas at 6.46 atm and 45°C in the reaction shown below? XeF₆(s)+ 3 H₂(g)→ Xe(g)+ 6 HF(g)

(Multiple Choice)

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Question 170

A steel bottle contains argon gas at STP.What is the final pressure if the temperature is changed to 115°C?

(Multiple Choice)

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Question 171

According to the kinetic molecular theory of gases,what is the force of attraction of one N₂ molecule for another N₂ molecule?

(Short Answer)

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Question 172

Which one of the following gases will have the highest rate of effusion?

(Multiple Choice)

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Question 173

In the diagram below,helium atoms are represented by unshaded spheres,neon atoms by gray spheres,and argon atoms by black spheres. -If the total pressure in the container is 900 mm Hg,what is the partial pressure of neon?

(Multiple Choice)

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Question 174

A 0.600 g sample containing Ag₂O and inert material is heated,causing the silver oxide to decompose according to the following equation: 2 Ag₂O(s)→ 4 Ag(s)+ O₂(g) If 13.8 mL of gas are collected over water at 27°C and 1.00 atm external pressure,what is the percentage of silver oxide in the sample? The partial pressure of water is 26.7 mm Hg at 27°C.

(Multiple Choice)

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Question 175

A 2.75-L container filled with CO₂ gas at 25°C and 225 kPa pressure springs a leak.When the container is re-sealed,the pressure is 185 kPA and the temperature is 10°C.How many moles of gas were lost?

(Multiple Choice)

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Question 176

A 1.00 L flask contains nitrogen gas at 25°C and 1.00 atm pressure.What is the final pressure in the flask if an additional 2.00 g of N₂ gas is added to the flask and the flask cooled to -55°C?

(Multiple Choice)

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Question 177

When using the ideal gas law the temperature must be expressed in ________.

(Short Answer)

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Question 178

Which of the following gases has the lowest average speed at 25°C?

(Multiple Choice)

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Question 179

Which of the following would have a density of 1.37 g/L at 7.0°C and 0.987 atm?

(Multiple Choice)

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Question 180

Showing 161 - 180 of 182

Exam 9: Gases: Their Properties and Behavior

Each of three identical 15.0-L gas cylinders contains 7.50 mol of gas at 295 K.Cylinder A contains Ar,cylinder B contains Cl2,and cylinder C contains N2.According to the kinetic molecular theory,which gas has the highest collision frequency?

In the diagram below,nitrogen molecules are represented by unshaded spheres,oxygen molecules by gray spheres,and chlorine molecules by black spheres. -If the total pressure in the container is 900 mm Hg,what is the partial pressure of nitrogen?

How many liters of SO3(g)are produced at 25°C and 1.00 atm from the combustion of 1.00 kg of coal which is 1.00% S by weight? Assume all the sulfur in the coal ends up as SO3.

The burning of sulfur-containing coal can lead to acid rain due to the formation of ________ acid.

What is the Celsius temperature of 100.0 g of chlorine gas in a 55.0-L container at 800 mm Hg?

A balloon filled with helium gas at 20°C occupies 2.91 L at 1.00 atm.The balloon is immersed in liquid nitrogen at -196°C,raising the pressure to 5.20 atm.What is the volume of the balloon in the liquid nitrogen?

What is the total pressure in a 10.0 L flask which contains 0.127 mol of H2(g)and 0.288 mol of N2(g)at 20.0°C?

How many liters of oxygen are needed to exactly react with 19.8 g of methane at STP? CH4(g)+ 2 O2(g)→ CO2(g)+ 2 H2O(l)

How many liters of oxygen are needed to exactly react with 27.8 g of methane at STP? CH4(g)+ 2 O2(g)→ CO2(g)+ 2 H2O(l)

How many grams of XeF6 are required to react with 0.579 L of hydrogen gas at 6.46 atm and 45°C in the reaction shown below? XeF6(s)+ 3 H2(g)→ Xe(g)+ 6 HF(g)

A steel bottle contains argon gas at STP.What is the final pressure if the temperature is changed to 115°C?

According to the kinetic molecular theory of gases,what is the force of attraction of one N2 molecule for another N2 molecule?

Which one of the following gases will have the highest rate of effusion?

In the diagram below,helium atoms are represented by unshaded spheres,neon atoms by gray spheres,and argon atoms by black spheres. -If the total pressure in the container is 900 mm Hg,what is the partial pressure of neon?

A 2.75-L container filled with CO2 gas at 25°C and 225 kPa pressure springs a leak.When the container is re-sealed,the pressure is 185 kPA and the temperature is 10°C.How many moles of gas were lost?

A 1.00 L flask contains nitrogen gas at 25°C and 1.00 atm pressure.What is the final pressure in the flask if an additional 2.00 g of N2 gas is added to the flask and the flask cooled to -55°C?

When using the ideal gas law the temperature must be expressed in ________.

Which of the following gases has the lowest average speed at 25°C?

Which of the following would have a density of 1.37 g/L at 7.0°C and 0.987 atm?

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Each of three identical 15.0-L gas cylinders contains 7.50 mol of gas at 295 K.Cylinder A contains Ar,cylinder B contains Cl₂,and cylinder C contains N₂.According to the kinetic molecular theory,which gas has the highest collision frequency?

How many liters of SO₃(g)are produced at 25°C and 1.00 atm from the combustion of 1.00 kg of coal which is 1.00% S by weight? Assume all the sulfur in the coal ends up as SO₃.

What is the total pressure in a 10.0 L flask which contains 0.127 mol of H₂(g)and 0.288 mol of N₂(g)at 20.0°C?

How many liters of oxygen are needed to exactly react with 19.8 g of methane at STP? CH₄(g)+ 2 O₂(g)→ CO₂(g)+ 2 H₂O(l)

How many liters of oxygen are needed to exactly react with 27.8 g of methane at STP? CH₄(g)+ 2 O₂(g)→ CO₂(g)+ 2 H₂O(l)

How many grams of XeF₆ are required to react with 0.579 L of hydrogen gas at 6.46 atm and 45°C in the reaction shown below? XeF₆(s)+ 3 H₂(g)→ Xe(g)+ 6 HF(g)

According to the kinetic molecular theory of gases,what is the force of attraction of one N₂ molecule for another N₂ molecule?

A 2.75-L container filled with CO₂ gas at 25°C and 225 kPa pressure springs a leak.When the container is re-sealed,the pressure is 185 kPA and the temperature is 10°C.How many moles of gas were lost?

A 1.00 L flask contains nitrogen gas at 25°C and 1.00 atm pressure.What is the final pressure in the flask if an additional 2.00 g of N₂ gas is added to the flask and the flask cooled to -55°C?